Pedal device and electronic keyboard instrument

Abstract

To provide a pedal device and an electronic keyboard instrument, respective devices of which impart uniform operation feeling.SOLUTION: A pedal device 50 comprises: a pedal 52 that is rotatably supported; a rotary volume 162 provided on a substrate 161 and having a rotary shaft 162b that is rotatable in conjunction with the pedal 52; and an engagement member 163 that engages a non-rotatable portion 162c around the rotary shaft 162b and the substrate 161 in the rotary volume 162.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a pedal device and an electronic keyboard instrument. [Background technology]

[0002] Pedal devices equipped with sensors such as rotary volumes that detect the amount of pedal depression have been disclosed. Patent Document 1 discloses a sensor in which depression of the pedal causes a lever of the sensor to be pressed via a transmission part of the pedal, thereby detecting the amount of pedal depression. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-180511 Summary of the Invention [Problem to be solved by the invention]

[0004] The rotary volume, which is a sensor with a rotating shaft, is positioned so that the axis of the rotating shaft is horizontal, and a lever is attached to this rotating shaft. When the pedal is depressed, the lever is pressed and the rotating shaft rotates. If the rotary volume is attached in a different position from device to device, the detected value of the pedal depression amount may differ from device to device. This may result in a different pedal operation feel from device to device.

[0005] An object of the present invention is to provide a pedal device and an electronic keyboard instrument that provide a uniform operational feel for each device. [Means for solving the problem]

[0006] The pedal device according to the present invention includes a rotatably supported pedal and a base plate. a main body; It can be rotated in conjunction with the pedal. Extending from the main body Rotation axis and,A rotary volume having a rotary shaft a cam member having a cam portion that engages with a tip end and engages with an arm portion of the pedal; At least one of the rotary volumes the main body Covered a cover body portion that does not cover the tip of the rotary shaft, and a frame-shaped portion that extends from below the cover body portion in the axial direction of the rotary shaft and that accommodates the cam member. A cover member; Equipped with The frame-shaped portion is By contacting the cam member a second restricting portion that restricts movement of the cam member in the axial direction of the rotation shaft; include .

[0007] An electronic keyboard instrument according to the present invention includes the pedal device described above. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a pedal device and an electronic keyboard instrument that provide a uniform operational feel for each device. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of an electronic keyboard instrument equipped with a pedal device according to an embodiment of the present invention. [Figure 2] 1 is a perspective view of a pedal case of a pedal device according to an embodiment of the present invention, with a portion thereof cut away; [Figure 3] 1 is a perspective view of a pedal device according to an embodiment of the present invention, with a pedal case and a front sheet metal member omitted; [Figure 4] 4 is a cross-sectional view of the pedal device according to the embodiment of the present invention taken along line IV-IV in FIG. 2. FIG. [Figure 5] 2 is an exploded perspective view showing a sensor unit and a substrate of the pedal device according to the embodiment of the present invention, as viewed from the right. FIG. [Figure 6] 2 is an exploded perspective view, seen from the left, showing a sensor unit and a substrate of the pedal device according to the embodiment of the present invention. FIG. [Figure 7] 3 is a side view of the sensor unit of the pedal device according to the embodiment of the present invention, viewed from the right. FIG. [Figure 8] 8 is a cross-sectional view of the pedal device according to the embodiment of the present invention taken along line VIII-VIII in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of the present invention will be described below with reference to the drawings. The electronic keyboard instrument 10 shown in Fig. 1 includes an instrument case 14 in which a circuit board, a speaker, etc. are provided. The instrument case 14 is provided with a full-size (88-key) keyboard 13 having a plurality of white keys 11 and black keys 12. Legs 20 having four legs 21 are connected to the underside of the instrument case 14 (electronic keyboard instrument 10). The electronic keyboard instrument 10 is supported by the legs 20. In the following description, the front side of the keyboard 13 will be referred to as the front side, the opposite side as the rear side, the left side as viewed from the keyboard 13 will be referred to as the left, the right side as viewed from the keyboard side will be referred to as the right, and the keyboard side will be referred to as the top and the leg 20 side as the bottom.

[0011] A connecting rod 51 is provided on each side between the two legs 21 on the left side and the two legs 21 on the right side of the electronic keyboard instrument 10. Although not shown, each connecting rod 51 is provided so that its upper end is connected to the rear surface of the electronic keyboard instrument 10 and extends downward. The left and right connecting rods 51 are connected to the left and right sides of a pedal device 50, respectively. The pedal device 50 provided on the electronic keyboard instrument 10 can perform various operations, such as applying a damper effect to the electronic keyboard instrument 10, by depressing a pedal 52. The pedal device 50 is provided with a pedal case 53 that covers a circuit board 161, a sensor unit 160, a bearing part 153 (described later), and the like.

[0012] The pedal case 53 is provided in the shape of a generally rectangular box that is elongated in the left-right direction and has front and rear surfaces, a top surface, and left and right side surfaces, and is open on the bottom surface. Three openings 53a are provided in the pedal case 53. The pedal device 50 also has three pedals 52 (a right pedal 52a, a left pedal 52b, and a center pedal 52c) lined up on the left, right, and center. Each pedal 52 is provided rotatably and protrudes forward (outward) through the corresponding opening 53a in the pedal case 53.

[0013] As shown in FIGS. 2 and 3 , the pedal device 50 includes a lower base member 100. The lower base member 100 includes a lower base member main body 101 that is a flat plate elongated in the left-right direction, and three pedal corresponding portions 102 that extend forward from the lower base member main body 101 and correspond to the pedals 52. The left and right pedal corresponding portions 102 are provided with adjustment members 103 that are threadably connected to the pedal corresponding portions 102 so that they can be adjusted to abut against the installation surface. The central pedal corresponding portion 102 is provided with a pad 104 that faces the installation surface. As shown in FIG. 4 , cushion members 105 are provided on the upper surfaces of the pedal corresponding portions 102 facing the adjustment members 103 and pads 104, respectively, to abut against the lower surfaces of the pedals 52 and regulate the lowest position of the pedals 52. The cushion members 105 may be made of, for example, felt.

[0014] 2 and 3, a lower sheet metal member 110 having an L-shaped cross section (see FIG. 4) is provided on the underside of the lower base member main body 101 of the lower base member 100. The lower sheet metal member 110 has fixing portions 111 that stand upright at both left and right ends. Each fixing portion 111 is fixed to the end of each of the left and right connecting rods 51 by a screw member.

[0015] An upper sheet metal member 120 is provided on the upper surface of the lower base member main body 101 of the lower base member 100. As shown in Fig. 4, the upper sheet metal member 120 has a lower plate portion 121 arranged in a flat plate shape on the lower base member main body 101, a flat upper plate portion 123, and a connecting plate 122 that connects the lower plate portion 121 and the upper plate portion 123 so as to stand vertically.

[0016] As shown in FIG. 2, the pedal device 50 is provided with a front sheet metal member 130 whose upper and lower ends are bent rearward so as to stand upright from the upper surface of the lower plate portion 121. As shown in FIG. 4, the front sheet metal member 130 has its lower plate portion fastened together with the lower plate portion 121 and the lower base member main body portion 101 by screws. The upper plate portion of the front sheet metal member 130 is fixed to the underside of the upper plate portion of the pedal case 53. Returning to FIG. 2, the front sheet metal member 130 is provided with openings 131 that open corresponding to each pedal 52 and have a shape that is open downward. Ribs 132 are provided on the periphery of each opening 131. Note that FIG. 2 only shows the opening 131 (rib 132) corresponding to the right pedal 52a.

[0017] 2 and 3, a restricting member 140 is provided on the upper surface of the base end side of each pedal 52. The restricting member 140 has a first restricting portion 141 and a second restricting portion 142. The first restricting portion 141 is provided with an inclined surface that slopes toward the base end side of the pedal 52 so as to cover the upper surface of the pedal 52. The second restricting portion 142 is connected to the first restricting portion 141 and is disposed above the first restricting portion 141, and is provided with an inclined surface that slopes toward the base end side. The restricting member 140 reduces the entry of a finger or the like through the opening 53a.

[0018] As shown in FIG. 3, a rectangular cushion member 143 is provided on the upper surface of the regulating member 140 behind the second regulating portion 142. The cushion member 143 may be made of, for example, felt. The cushion member 143 abuts against the upper portion of the opening 131 (rib 132) of the front sheet metal member 130, and regulates the upper limit position of the pedal 52, which is urged upward by a coil spring 54 (described later). The regulating member 140 also has an arm portion 144 that protrudes toward the sensor unit 160 (described later) and engages with a cam member 164 of the sensor unit 160 (see also FIG. 4). A cam surface 144a consisting of a curved flat portion is provided on the lower surface of the arm portion 144 (see FIG. 4).

[0019] An upper base member 150 is provided above the lower base member 100 via an upper sheet metal member 120. The upper base member 150 is provided with spring holding portions 151 corresponding to the upper base ends of the pedal corresponding portions 102 of the lower base member 100. The spring holding portion 151 is cylindrical and has a coil spring 54 disposed therein. The lower end of the coil spring 54 is supported by the bottom surface of the spring holding portion 151. The upper end of the coil spring 54 is connected to a spring receiving member (not shown) provided on the underside of the pedal 52. The pedal 52 is urged upward by the coil spring 54.

[0020] The base end of each spring holding portion 151 of the upper base member 150 is connected to an upper base member main body portion 152. The upper base member main body portion 152 is formed in the shape of a plate that is long in the left-right direction. On the upper surface of the upper base member main body portion 152, bearing portions 153 that rotatably support the rotation shafts 55 provided at the base ends of each pedal 52 are provided corresponding to each pedal 52. The upper surface of the upper base member main body portion 152 also has a recess 152a that is long in the left-right direction. A substrate 161 is provided in the recess 152a. A sensor unit 160 is provided on the upper surface of the substrate 161. As will be described later, the sensor unit 160 has a cam portion 164a of a cam member 164 that abuts and engages with a cam surface 144a of the arm portion 144 of the regulating member 140, interlocking the pedal 52 with the rotation shaft 162b of the rotary volume 162.

[0021] As shown in FIGS. 5 and 6, the sensor unit 160 includes a rotary volume 162, an engaging member 163, a cam member 164, a cover member 165, and a torsion coil spring 166. The rotary volume 162 may be a rotary volume using a variable resistor or a rotary volume equipped with a rotary encoder that outputs the rotation angle of a rotary shaft 162b. The rotary volume 162 has three terminals 162a1 protruding from the bottom surface of a substantially rectangular box-shaped main body 162a. The terminals 162a1 are inserted into terminal holes 161a of the circuit board 161 and soldered. The rotary volume 162 also includes a rotary shaft 162b. The pedal device 50 includes a processor (not shown) on the circuit board 161 or the like that derives the depression amount of the pedal 52 based on the rotation amount of the rotary shaft 162b. The rotary shaft 162b is provided with a chamfered portion 162b1. The portion of the rotary shaft 162b where the chamfered portion 162b1 is provided is D-shaped in cross section. A substantially cylindrical non-rotating portion 162c is provided around the base end of the rotary shaft 162b of the rotary volume 162. The non-rotating portion 162c is fixed to the main body portion 162a and does not rotate together with the rotary shaft 162b.

[0022] The engagement member 163 is a rectangular block with a semicircular upper surface and a generally flat lower surface, and is provided with a support hole 163a that penetrates in the axial direction of the rotary shaft 162b of the rotary volume 162. A flange 163b (contact portion) is provided on the rotary volume 162 side of the engagement member 163. A boss 163c that protrudes downward is provided on the lower surface of the engagement member 163. The non-rotating portion 162c of the rotary volume 162 is inserted into the support hole 163a of the engagement member 163 so that the outer peripheral surface of the non-rotating portion 162c slides against the inner peripheral surface of the support hole 163a. ​​The boss 163c of the engagement member 163 is inserted into the hole 161b of the substrate 161 by light press-fitting. A contact surface 163d, which is the flat lower surface, contacts the upper surface of the substrate 161. In this way, the engagement member 163 engages with the non-rotating portion 162 c of the rotary volume 162 and the substrate 161 .

[0023] The cam member 164 has a substantially cylindrical mounting portion 164b and a cam portion 164a that protrudes radially outward from the mounting portion 164b. The cam portion 164a is provided at approximately the center of the mounting portion 164b in the axial direction. The tip of the cam portion 164a is provided with a convex arc-shaped cam surface 164a1 that protrudes to the left in the axial direction. The outer periphery of the mounting portion 164b on the side from which the cam surface 164a1 protrudes is formed as a spring arrangement portion 164b1, in which a torsion coil spring 166 is arranged. A protrusion 164c that protrudes radially outward is provided at the lower left end of the mounting portion 164b.

[0024] The cam member 164 is attached to the rotary shaft 162b of the rotary volume 162. As shown in Figures 7 and 8, the attachment portion 164b of the cam member 164 has a D-shaped hole at the approximate axial center of the substantially cylindrical interior due to an alignment portion 164b2 protruding from the inner circumferential surface of the attachment portion 164b. Therefore, the cam member 164 is attached to the rotary shaft 162b so that the alignment portion 164b2 abuts against the chamfered portion 162b1 of the rotary shaft 162b. In this way, the cam member 164 is fixed to the rotary shaft 162b and its relative rotation with respect to the rotary shaft 162b is restricted.

[0025] 5 and 6, the cover member 165 has a cover main body 165a that is open downward and a frame-shaped portion 165b that extends leftward from the lower end of the cover main body 165a. The cover main body 165a has a rectangular box-shaped portion 165a1 and an arc-shaped portion 165a2 that are connected to each other. Bolt holes 165c1 and 165c2 are formed on the outside of the cover main body 165a and the outside of the frame-shaped portion 165b, respectively.

[0026] Cover member 165 is fixed by screws into bolt holes 161c and 161d of substrate 161 via bolt holes 165c1 and 165c2. Here, as shown in Fig. 8, bosses 165d1 and 165d2 are provided on the underside near the inside of bolt holes 165c1 and 165c2. Boss 165d1 is lightly press-fitted into hole 161e, and boss 165d2 is lightly press-fitted radially into slightly elongated hole 161f that communicates with bolt hole 161d.

[0027] The cover member 165 covers most of the rotary volume 162 (the main body 162a, the non-rotating portion 162c, and a portion of the base side of the rotating shaft 162b). In other words, the cover main body 165a roughly covers the main body 162a of the rotary volume 162 with the rectangular box-shaped portion 165a1, and covers the engaging member 163 with the arc-shaped portion 165a2.

[0028] Here, a groove-shaped first restricting portion 165d is provided on the upper inner surface of rectangular box-shaped portion 165a1 approximately at the boundary between rectangular box-shaped portion 165a1 and arc-shaped portion 165a2. An upper portion of flange portion 163b of engaging member 163 is disposed in first restricting portion 165d. A left side wall surface (right side in FIG. 8) of first restricting portion 165d faces flange portion 163b. Abutment between the side wall surface of first restricting portion 165d and flange portion 163b restricts movement of engaging member 163 toward the axial tip of rotating shaft 162b.

[0029] Additionally, the cam member 164 is arranged to fit within the frame-shaped portion 165b. A protrusion 164c of the cam member 164 faces a second restricting portion 165e that is the left inner wall surface of the frame-shaped portion 165b of the cover member 165. The second restricting portion 165e comes into contact with the end face of the protrusion 164c, thereby restricting the movement of the cam member 164 toward the axial tip side of the rotary shaft 162b.

[0030] One (upper) leg 166a of torsion coil spring 166 provided in spring arrangement portion 164b1 of cam member 164 is engaged with spring locking portion 164d provided as a notch in the portion where cam surface 164a1 is formed. The other (lower) leg 166b of torsion coil spring 166 is engaged with spring locking portion 165f provided as a notch in the front side of frame-shaped portion 165b of cover member 165. As shown in Fig. 7, cam member 164, together with rotation shaft 162b of rotary volume 162, is biased by torsion coil spring 166 in the counterclockwise direction (in other words, upward) when viewed from the tip side of rotation shaft 162b. Therefore, the cam portion 164a (cam surface 164a1) of the cam member 164 is always in contact with and engaged with the cam surface 144a that is the lower surface of the arm portion 144 of the regulating member 140 that is fixed to the upper surface of the pedal 52. Therefore, the cam member 164 rotates together with the rotary shaft 162b of the rotary volume 162 in response to the depression of the pedal 52, and the amount of depression of the pedal 52 is detected by the rotary volume 162.

[0031] To attach the sensor unit 160 to the substrate 161, first, the engaging member 163 is attached to the rotary volume 162 from the tip side of the rotating shaft 162b, and the support hole portion 163a is engaged with the non-rotating portion 162c. Next, the cam member 164 is attached to the rotating shaft 162b of the rotary volume 162. After that, the cover member 165 is attached to the assembled rotary volume 162, engaging member 163, and cam member 164. Then, the torsion coil spring 166 is attached to assemble the sensor unit 160. After that, the assembled sensor unit 160 is attached to the substrate 161.

[0032] In the pedal device 50, a sensor unit 160 is provided corresponding to each pedal 52. For example, the sensor unit 160 may be provided corresponding to only the right pedal 52a in order to impart a damper effect as in an actual piano, but by providing the sensor unit 160 also to the left pedal 52b and the middle pedal 52c, it is possible to realize not only a simple ON / OFF state indicating whether or not the pedal 52 is depressed, but also a function that is not available in an actual piano (a function that exerts an effect according to the amount of depression of the pedal 52).

[0033] As described above, in the embodiment of the present invention, the pedal device 50 includes a rotatably supported pedal 52, a rotary volume 162 provided on a base plate 161 and having a rotational shaft 162b that can rotate in conjunction with the pedal 52, and an engagement member 163 that engages with a non-rotating portion 162c around the rotational shaft 162b of the rotary volume 162 and the base plate 161.

[0034] As a result, the rotary volume 162 is supported by the engagement member 163 fixed to the substrate, which ensures reliable positioning of the rotation shaft 162b of the rotary volume 162. In particular, the inclination of the rotation shaft 162b is restricted by the engagement member 163. Therefore, the attachment position of the rotation shaft 162b for each pedal device 50 is approximately uniform, which makes it possible to make the operational feel of the pedal 52 for each device uniform.

[0035] The pedal device 50 also includes a processor that derives the amount of depression of the pedal 52 according to the amount of rotation of the rotary shaft 162b. This makes it possible to provide an effect such as a damper according to the amount of depression of the pedal 52.

[0036] Furthermore, the engaging member 163 has a boss 163c that can be inserted into the substrate 161. This allows the engaging member 163 to be fixed to the substrate 161 with a simple structure.

[0037] Furthermore, the engaging member 163 has an abutment surface 163d that abuts against the substrate 161. This ensures that the engaging member 163 and the non-rotating portion 162c are engaged with each other, allowing the positioning of the rotating shaft 162b.

[0038] Furthermore, the engaging member 163 has a support hole 163a that penetrates in the axial direction of the rotating shaft 162b, and the non-rotating portion 162c is inserted into the support hole 163a. ​​This allows the outer periphery of the cylindrical non-rotating portion 162c to be reliably supported by the engaging member 163, thereby enabling the rotating shaft 162b to be positioned with greater precision.

[0039] The cover member 165 is provided on the base plate 161 and includes a first restricting portion 165d that restricts movement of the engaging member 163 by coming into contact with the abutment portion that is the flange portion 163b of the engaging member 163, and covers the rotary volume 162. This reduces movement of the engaging member 163 toward the tip end of the rotary shaft 162b even if the pedal device 50 receives an impact, so that the rotary shaft 162b is positioned more stably and continuously.

[0040] Furthermore, the rotary shaft 162b is provided with a cam member 164 having a cam portion 164a that engages with the arm portion 144 of the pedal 52, and the cover member 165 has a second restricting portion 165e that restricts movement of the cam member 164. As a result, even if the pedal device 50 receives an impact, the cam member 164, which rotates the rotary shaft 162b in response to depression of the pedal 52, is prevented from moving toward the tip side of the rotary shaft 162b.

[0041] The pedal device 50 also has a torsion coil spring 166, one leg 166a of which is engaged with the cam member 164 and the other leg 166b of which is engaged with the cover member 165. This allows the cam portion 164a (cam surface 164a1) of the cam member 164 to reliably abut against the cam surface 144a of the arm portion 144, so that the amount of depression of the pedal 52 can be detected with high accuracy.

[0042] The electronic keyboard instrument 10 also has a pedal device 50. This makes it possible to provide an electronic keyboard instrument 10 in which the operational feel of the pedal 52 is uniform for each device. Although the pedal device 50 is provided in the electronic keyboard instrument 10 in this embodiment, it can also be provided in other musical instruments or electronic instruments.

[0043] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims.

[0044] The invention described in the first claim of the present application is as follows: [1] A rotatably supported pedal; a rotary volume provided on the substrate and having a rotation shaft that can rotate in conjunction with the pedal; an engaging member that engages with a non-rotating portion of the rotary volume around the rotation axis and the substrate; A pedal device having: [2] The pedal device according to [1], further comprising a processor that derives the amount of depression of the pedal according to the amount of rotation of the rotation shaft. [3] The pedal device according to [1] or [2], wherein the engaging member has a boss that can be inserted into the base plate. [4] The pedal device according to [3], wherein the engaging member has an abutment surface that abuts against the base plate. [5] The engaging member has a support hole portion that penetrates the rotating shaft in the axial direction, The pedal device according to [4], wherein the non-rotating portion is inserted into the support hole portion. [6] The pedal device described in [5] above, further comprising a cover member for covering the rotary volume provided on the substrate, the cover member having a first regulating portion that abuts against the abutment portion of the engaging member to regulate axial movement of the rotating shaft in the engaging member. [7] The rotary shaft is provided with a cam member having a cam portion that engages with the arm portion of the pedal, The pedal device according to [6], further comprising a frame-shaped portion provided with a second restricting portion that restricts axial movement of the rotation shaft in the cam member. [8] The pedal device according to [7], which has a torsion coil spring, one leg of which is engaged with the cam member and the other leg of which is engaged with the frame-shaped portion. [9] An electronic keyboard instrument equipped with the pedal device described in [8] above. [Explanation of symbols]

[0045] 10 Electronic Keyboard Instruments 11 White Keys 12 black keys 13 keys 14 Instrument case 20 Legs 21 legs 50 pedal device 51 Connecting rod 52 Pedal 52a Right pedal 52b Left pedal 52c medium pedal 53 pedal case 53a Opening 54 Coil spring 55 Rotating shaft 100 Lower base member 101 base member main body part 101 lower base member main body part 102 Pedal corresponding part 103 Adjustment member 104 Pad 105 Cushion member 110 Lower sheet metal member 111 Fixing portion 120 upper sheet metal member 121 lower plate portion 122 Connection plate 123 Upper plate 130 Front sheet metal member 131 Opening 132 Rib 140 Regulating member 141 First restricting section 142 Second restricting section 143 cushion member 144 arm portion 144a Cam surface 150 Upper base member 151 spring holding portion 152 upper base member main body portion 152a recess 153 bearing portion 160 Sensor unit 161 Circuit board 161a Terminal hole 161b Hole 161c Bolt hole 161d Bolt hole 161e hole 161f hole 162 Rotary volume 162a Main body 162a1 Terminal 162b Rotating shaft 162b1 Chamfering part 162c Non-rotating part 163 Engagement member 163a Support hole portion 163b Tsuba section 163c Boss 163d contact surface 164 cam member 164a Cam portion 164a1 Cam surface 164b Mounting portion 164b1 Spring arrangement portion 164b2 Alignment part 164c Protrusion 164d spring engaging portion 165 cover member 165a Cover main body portion 165a1 Rectangular box-shaped portion 165a2 Arc-shaped portion 165b Frame-shaped portion 165c1 Bolt hole 165c2 Bolt hole 165d 1st Regulatory Section 165d1 Boss 165d2 Boss 165e Second Regulatory Department 165f spring engaging portion 166 torsion coil spring 166a Leg 166b Leg

Claims

1. a rotatably supported pedal; a rotary volume provided on a substrate and including a main body and a rotation shaft extending from the main body and rotatable in conjunction with the pedal; a cam member that engages with the tip of the rotary shaft and includes a cam portion that engages with an arm portion of the pedal; a cover member including: a cover main body portion that covers at least the main body portion of the rotary volume but does not cover the tip of the rotary shaft; and a frame-shaped portion that extends from below the cover main body portion in the axial direction of the rotary shaft and that accommodates the cam member; The frame-shaped portion includes a second restricting portion that restricts movement of the cam member in the axial direction of the rotation shaft by contacting the cam member. Pedal device.

2. a torsion coil spring having one leg that engages with the cam member and the other leg that engages with the frame-shaped portion; The pedal device according to claim 1 .

3. The rotary volume further includes a non-rotating portion around the rotation axis and an engaging member that engages with the substrate. The pedal device according to claim 1 .

4. The cover member further includes a cover main body portion that is open downward. The pedal device according to claim 1 .

5. The second restricting portion is an inner wall surface of the frame portion in one direction. The pedal device according to claim 1 .

6. An electronic keyboard instrument comprising the pedal device according to any one of claims 1 to 5.

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